Hi - I had a similar problem a while back with a mis-set submask of 255.255.255.255  ...my solution was to monitor the Rpi through the Composite Video connector and use a compatible USB Keyboard to edit the configuration file(s) in linux.

Here is the messages link:
https://bitcointalk.org/index.php?topic=530025.msg6265965

There might be some typos (conspicuous), so use care if you try some of these ideas.

Rick450

I think it is a translation challenge... I used Google Translate piecemeal, but Google also has a browser that translates webpages.

Also, I thought someone associated with that website posts to this board? ...I figured that out after I had solved my problem.

Look around and you can likely locate the poster and make your inquiry.

Rick450

Here is a slightly better way to correct the mis-configuration on the SD Card. The image files may not be compatible as I thought they may be... I had a similar problem and my vendor stated that there was no link to their machine's image file of the SD Card.

I connected the composite video output of the Raspberry Pi to my monitor, and also connected a RPi-compatible USB keyboard (GearHead KB1700U) to the USB on the RPi. I had to learn a little Linux to get to a subdirectory for editing the file named interfaces. Commands like ls (list contents), cd .. (like DOS move up a directory), cd <dir name> (like DOS change to directory), etc. The file is usually located in a directory at a similar location like these examples:

/etc/media/network/interfaces
/etc/network/interfaces

Using the built-in editor nano, this command opened the file with the editor:
sudo nano interfaces

If passwords are required at any time, User is: pi and password is: raspberry

The interfaces text file was edited for my configuration to this:
iface eth0 inet static
address 192.168.0.23
netmask 255.255.255.0
network 192.168.0.0
gateway 192.168.0.1

Systems may vary so these lines could be different, and it is probably safer to only change~add~delete what is necessary.

To save the edited file:
<control> x

Then confirm the save y/n with:
y

I was advised that there can be another file named resolv.conf located:
/etc/resolv.conf

And that can be edited to the Google public DNS server IP like this:
nameserver 8.8.8.8
name server 8.8.4.4

But, I did not look for that file.

I was told that the RPi IP settings can be set temporarily with a command like:
ifconfig eth0 192.168.0.23 netmask 255.255.255.0

Which would then allow access from a browser on the network to change the IP through the standard interface software. This would have to be done before the system is restarted as the temporary settings would not be retained and used. I did not try this though.

Rick450

Hello - Yes, thanks... I actually had to use a slightly better way to correct the mis-configuration. The vendor stated that there was no link to their machine's image file.

I connected the composite video output of the Raspberry Pi to my monitor, and also connected a RPi-compatible USB keyboard (GearHead KB1700U) to the USB on the RPi. I had to learn a little Linux to get to a subdirectory for editing the file named interfaces. Commands like ls (list contents), cd .. (like DOS move up a directory), cd <dir name> (like DOS change to directory), etc. The file is usually located in a directory at a similar location like these examples:

/etc/media/network/interfaces
/etc/network/interfaces

Using the built-in editor nano, this command opened the file with the editor:
sudo nano interfaces

If passwords are required at any time, User is: pi and password is: raspberry

The interfaces text file was edited for my configuration to this:
iface eth0 inet static
address 192.168.0.23
netmask 255.255.255.0
network 192.168.0.0
gateway 192.168.0.1

Systems may vary so these lines could be different, and it is probably safer to only change~add~delete what is necessary.

To save the edited file:
<control> x

Then confirm the save y/n with:
y

I was advised that there can be another file named resolv.conf located:
/etc/resolv.conf

And that can be edited to the Google public DNS server IP like this:
nameserver 8.8.8.8
name server 8.8.4.4

But, I did not look for that file.

I was told that the RPi IP settings can be set temporarily with a command like:
ifconfig eth0 192.168.0.23 netmask 255.255.255.0

Which would then allow access from a browser on the network to change the IP through the standard interface software. This would have to be done before the system is restarted as the temporary settings would not be retained and used. I did not try this though.

Rick450

Oh wait... that's not right. The file info includes a partial download. This is correct:

The files are:
fz49_.rar..............overclocked version image file rar compressed (629MB)
fz49img.rar............standard image file rar compressed (627MB)
Win32DiskImager.exe....imaging utility install file for Windows (11.7MB)

And instructions are here:
http://www.fz49.com/english/201403/00000103.html

~R

Yes, buy a new 8GB SD card and download the SD image files. Were you able to do that? I was able to figure-out the download page with Google Translate and I have the files... one image file is for an overclocked system. I can provide you with a link to the files on my website if that would help.

The files are:
fz49img.rar..............overclocked version image file rar compressed (629MB)
dragon_image.7z..........standard image file rar compressed (557MB)
Win32DiskImager.exe .....imaging utility install file for Windows (11.7MB)

~R

Hello, can anyone help... I goofed-up and reset an IP on a LKetc 1th machine from 192.168.1.x (255.255.255.0) to 192.168.0.23 (255.255.255.255) and I now realize that the subnet mask of 255.255.255.255 should have been left as is.

I cannot communicate with the machine now.

How can I reset the subnet mask?

Thanks if anyone could advise,
Rick450